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Finding the Fourth Proportional to 21,250.94, 29,332.94 and 14,534.15

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Solution

The fourth proportional to 21,250.94, 29,332.94 and 14,534.15 is: 20,061.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,250.94 : 29,332.94 = 14,534.15 : x
  2. Step 2: Convert to fraction form
    21,250.94/29,332.94 = 14,534.15/x
  3. Step 3: Cross multiply
    21,250.94x = 29,332.94 × 14,534.15
  4. Step 4: Simplify right side
    21,250.94x = 426,329,130.57
  5. Step 5: Solve for x
    x = 426,329,130.57/21,250.94
  6. Step 6: Final answer
    x = 20,061.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.